umass_scsipi.c revision 1.67 1 /* $NetBSD: umass_scsipi.c,v 1.67 2021/04/24 23:36:59 thorpej Exp $ */
2
3 /*
4 * Copyright (c) 2001, 2003, 2012 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Lennart Augustsson (lennart (at) augustsson.net) at
9 * Carlstedt Research & Technology, Charles M. Hamnnum and Matthew R. Green.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 */
32
33 #include <sys/cdefs.h>
34 __KERNEL_RCSID(0, "$NetBSD: umass_scsipi.c,v 1.67 2021/04/24 23:36:59 thorpej Exp $");
35
36 #ifdef _KERNEL_OPT
37 #include "opt_usb.h"
38 #endif
39
40 #include "atapibus.h"
41 #include "scsibus.h"
42
43 #include <sys/param.h>
44 #include <sys/buf.h>
45 #include <sys/bufq.h>
46 #include <sys/conf.h>
47 #include <sys/device.h>
48 #include <sys/disk.h> /* XXX */
49 #include <sys/ioctl.h>
50 #include <sys/kernel.h>
51 #include <sys/kmem.h>
52 #include <sys/lwp.h>
53 #include <sys/malloc.h>
54 #include <sys/systm.h>
55
56 /* SCSI & ATAPI */
57 #include <sys/scsiio.h>
58 #include <dev/scsipi/scsi_spc.h>
59 #include <dev/scsipi/scsi_all.h>
60 #include <dev/scsipi/scsipi_all.h>
61 #include <dev/scsipi/scsiconf.h>
62
63 #include <dev/scsipi/atapiconf.h>
64
65 #include <dev/scsipi/scsipi_disk.h>
66 #include <dev/scsipi/scsi_disk.h>
67 #include <dev/scsipi/scsi_changer.h>
68
69 #include <dev/scsipi/sdvar.h> /* XXX */
70
71 /* USB */
72 #include <dev/usb/usb.h>
73 #include <dev/usb/usbdi.h>
74 #include <dev/usb/usbdi_util.h>
75 #include <dev/usb/usbdevs.h>
76 #include <dev/usb/usbhist.h>
77
78 #include <dev/usb/umassvar.h>
79 #include <dev/usb/umass_scsipi.h>
80
81 struct umass_scsipi_softc {
82 struct umassbus_softc base;
83
84 struct atapi_adapter sc_atapi_adapter;
85 #define sc_adapter sc_atapi_adapter._generic
86 struct scsipi_channel sc_channel;
87 usbd_status sc_sync_status;
88 struct scsi_request_sense sc_sense_cmd;
89 };
90
91
92 #define SHORT_INQUIRY_LENGTH 36 /* XXX */
93
94 #define UMASS_ATAPI_DRIVE 0
95
96 Static void umass_scsipi_request(struct scsipi_channel *,
97 scsipi_adapter_req_t, void *);
98 Static void umass_scsipi_minphys(struct buf *);
99 Static int umass_scsipi_ioctl(struct scsipi_channel *, u_long,
100 void *, int, proc_t *);
101 Static int umass_scsipi_getgeom(struct scsipi_periph *,
102 struct disk_parms *, u_long);
103
104 Static void umass_scsipi_cb(struct umass_softc *, void *,
105 int, int);
106 Static void umass_scsipi_sense_cb(struct umass_softc *, void *,
107 int, int);
108
109 Static struct umass_scsipi_softc *umass_scsipi_setup(struct umass_softc *);
110
111 #if NATAPIBUS > 0
112 Static void umass_atapi_probe_device(struct atapibus_softc *, int);
113
114 const struct scsipi_bustype umass_atapi_bustype = {
115 .bustype_type = SCSIPI_BUSTYPE_ATAPI,
116 .bustype_cmd = atapi_scsipi_cmd,
117 .bustype_interpret_sense = atapi_interpret_sense,
118 .bustype_printaddr = atapi_print_addr,
119 .bustype_kill_pending = scsi_kill_pending,
120 .bustype_async_event_xfer_mode = NULL,
121 };
122 #endif
123
124
125 #if NSCSIBUS > 0
126 int
127 umass_scsi_attach(struct umass_softc *sc)
128 {
129 UMASSHIST_FUNC(); UMASSHIST_CALLED();
130 struct umass_scsipi_softc *scbus;
131
132 scbus = umass_scsipi_setup(sc);
133
134 scbus->sc_channel.chan_bustype = &scsi_bustype;
135 scbus->sc_channel.chan_ntargets = 2;
136 scbus->sc_channel.chan_nluns = sc->maxlun + 1;
137 scbus->sc_channel.chan_id = scbus->sc_channel.chan_ntargets - 1;
138 DPRINTFM(UDMASS_USB, "sc %#jx: SCSI", (uintptr_t)sc, 0, 0, 0);
139
140 mutex_enter(&sc->sc_lock);
141 sc->sc_refcnt++;
142 mutex_exit(&sc->sc_lock);
143 scbus->base.sc_child =
144 config_found(sc->sc_dev, &scbus->sc_channel, scsiprint,
145 CFARG_IATTR, "scsi",
146 CFARG_EOL);
147 mutex_enter(&sc->sc_lock);
148 if (--sc->sc_refcnt < 0)
149 cv_broadcast(&sc->sc_detach_cv);
150 mutex_exit(&sc->sc_lock);
151
152
153 return 0;
154 }
155
156 void
157 umass_scsi_detach(struct umass_softc *sc)
158 {
159 struct umass_scsipi_softc *scbus = (struct umass_scsipi_softc *)sc->bus;
160
161 kmem_free(scbus, sizeof(*scbus));
162 sc->bus = NULL;
163 }
164 #endif
165
166 #if NATAPIBUS > 0
167 int
168 umass_atapi_attach(struct umass_softc *sc)
169 {
170 UMASSHIST_FUNC(); UMASSHIST_CALLED();
171 struct umass_scsipi_softc *scbus;
172
173 scbus = umass_scsipi_setup(sc);
174 scbus->sc_atapi_adapter.atapi_probe_device = umass_atapi_probe_device;
175
176 scbus->sc_channel.chan_bustype = &umass_atapi_bustype;
177 scbus->sc_channel.chan_ntargets = 2;
178 scbus->sc_channel.chan_nluns = 1;
179
180 scbus->sc_channel.chan_defquirks |= sc->sc_busquirks;
181 DPRINTFM(UDMASS_USB, "sc %#jxp: ATAPI", (uintptr_t)sc, 0, 0, 0);
182
183 mutex_enter(&sc->sc_lock);
184 sc->sc_refcnt++;
185 mutex_exit(&sc->sc_lock);
186 scbus->base.sc_child =
187 config_found(sc->sc_dev, &scbus->sc_channel, atapiprint,
188 CFARG_IATTR, "atapi",
189 CFARG_EOL);
190 mutex_enter(&sc->sc_lock);
191 if (--sc->sc_refcnt < 0)
192 cv_broadcast(&sc->sc_detach_cv);
193 mutex_exit(&sc->sc_lock);
194
195 return 0;
196 }
197
198 void
199 umass_atapi_detach(struct umass_softc *sc)
200 {
201 struct umass_scsipi_softc *scbus = (struct umass_scsipi_softc *)sc->bus;
202
203 kmem_free(scbus, sizeof(*scbus));
204 sc->bus = NULL;
205 }
206 #endif
207
208 Static struct umass_scsipi_softc *
209 umass_scsipi_setup(struct umass_softc *sc)
210 {
211 struct umass_scsipi_softc *scbus;
212
213 scbus = kmem_zalloc(sizeof(*scbus), KM_SLEEP);
214 sc->bus = &scbus->base;
215
216 /* Only use big commands for USB SCSI devices. */
217 /* Do not ask for timeouts. */
218 sc->sc_busquirks |= PQUIRK_ONLYBIG|PQUIRK_NOREPSUPPOPC;
219
220 /* Fill in the adapter. */
221 memset(&scbus->sc_adapter, 0, sizeof(scbus->sc_adapter));
222 scbus->sc_adapter.adapt_dev = sc->sc_dev;
223 scbus->sc_adapter.adapt_nchannels = 1;
224 scbus->sc_adapter.adapt_request = umass_scsipi_request;
225 scbus->sc_adapter.adapt_minphys = umass_scsipi_minphys;
226 scbus->sc_adapter.adapt_ioctl = umass_scsipi_ioctl;
227 scbus->sc_adapter.adapt_getgeom = umass_scsipi_getgeom;
228 scbus->sc_adapter.adapt_flags = SCSIPI_ADAPT_MPSAFE;
229
230 /* Fill in the channel. */
231 memset(&scbus->sc_channel, 0, sizeof(scbus->sc_channel));
232 scbus->sc_channel.chan_adapter = &scbus->sc_adapter;
233 scbus->sc_channel.chan_channel = 0;
234 scbus->sc_channel.chan_flags = SCSIPI_CHAN_OPENINGS | SCSIPI_CHAN_NOSETTLE;
235 scbus->sc_channel.chan_openings = 1;
236 scbus->sc_channel.chan_max_periph = 1;
237 scbus->sc_channel.chan_defquirks |= sc->sc_busquirks;
238
239 return scbus;
240 }
241
242 Static void
243 umass_scsipi_request(struct scsipi_channel *chan,
244 scsipi_adapter_req_t req, void *arg)
245 {
246 UMASSHIST_FUNC(); UMASSHIST_CALLED();
247 struct scsipi_adapter *adapt = chan->chan_adapter;
248 struct scsipi_periph *periph;
249 struct scsipi_xfer *xs;
250 struct umass_softc *sc = device_private(adapt->adapt_dev);
251 struct umass_scsipi_softc *scbus = (struct umass_scsipi_softc *)sc->bus;
252 struct scsipi_generic *cmd;
253 int cmdlen;
254 int dir;
255 #ifdef UMASS_DEBUG
256 microtime(&sc->tv);
257 #endif
258 switch(req) {
259 case ADAPTER_REQ_RUN_XFER:
260 xs = arg;
261 periph = xs->xs_periph;
262 DIF(UDMASS_UPPER, periph->periph_dbflags |= SCSIPI_DEBUG_FLAGS);
263
264 DPRINTFM(UDMASS_CMD, "sc %#jxp: %jd:%jd xs=%#jxp",
265 (uintptr_t)sc, periph->periph_target, periph->periph_lun,
266 (uintptr_t)xs);
267 DPRINTFM(UDMASS_CMD, "cmd=0x%02jx datalen=%jd (quirks=%#jx, "
268 "poll=%jd)", xs->cmd->opcode, xs->datalen,
269 periph->periph_quirks, !!(xs->xs_control & XS_CTL_POLL));
270 #if defined(UMASS_DEBUG) && defined(SCSIPI_DEBUG)
271 if (umassdebug & UDMASS_SCSI)
272 show_scsipi_xs(xs);
273 else if (umassdebug & ~UDMASS_CMD)
274 show_scsipi_cmd(xs);
275 #endif
276
277 if (sc->sc_dying) {
278 xs->error = XS_DRIVER_STUFFUP;
279 goto done;
280 }
281
282 #ifdef UMASS_DEBUG
283 if (SCSIPI_BUSTYPE_TYPE(chan->chan_bustype->bustype_type) ==
284 SCSIPI_BUSTYPE_ATAPI ?
285 periph->periph_target != UMASS_ATAPI_DRIVE :
286 periph->periph_target == chan->chan_id) {
287 DPRINTFM(UDMASS_SCSI, "sc %#jx: wrong SCSI ID %jd",
288 (uintptr_t)sc, periph->periph_target, 0, 0);
289 xs->error = XS_DRIVER_STUFFUP;
290 goto done;
291 }
292 #endif
293
294 cmd = xs->cmd;
295 cmdlen = xs->cmdlen;
296
297 dir = DIR_NONE;
298 if (xs->datalen) {
299 switch (xs->xs_control &
300 (XS_CTL_DATA_IN | XS_CTL_DATA_OUT)) {
301 case XS_CTL_DATA_IN:
302 dir = DIR_IN;
303 break;
304 case XS_CTL_DATA_OUT:
305 dir = DIR_OUT;
306 break;
307 }
308 }
309
310 if (xs->datalen > UMASS_MAX_TRANSFER_SIZE) {
311 printf("umass_cmd: large datalen, %d\n", xs->datalen);
312 xs->error = XS_DRIVER_STUFFUP;
313 goto done;
314 }
315
316 if (xs->xs_control & XS_CTL_POLL) {
317 /* Use sync transfer. XXX Broken! */
318 DPRINTFM(UDMASS_SCSI, "sync dir=%jd\n", dir, 0, 0, 0);
319 scbus->sc_sync_status = USBD_INVAL;
320 sc->sc_methods->wire_xfer(sc, periph->periph_lun, cmd,
321 cmdlen, xs->data,
322 xs->datalen, dir,
323 xs->timeout, USBD_SYNCHRONOUS,
324 0, xs);
325 DPRINTFM(UDMASS_SCSI, "done err=%jd",
326 scbus->sc_sync_status, 0, 0, 0);
327 switch (scbus->sc_sync_status) {
328 case USBD_NORMAL_COMPLETION:
329 xs->error = XS_NOERROR;
330 break;
331 case USBD_TIMEOUT:
332 xs->error = XS_TIMEOUT;
333 break;
334 default:
335 xs->error = XS_DRIVER_STUFFUP;
336 break;
337 }
338 goto done;
339 } else {
340 DPRINTFM(UDMASS_SCSI, "async dir=%jd, cmdlen=%jd"
341 " datalen=%jd", dir, cmdlen, xs->datalen, 0);
342 sc->sc_methods->wire_xfer(sc, periph->periph_lun, cmd,
343 cmdlen, xs->data,
344 xs->datalen, dir,
345 xs->timeout, 0,
346 umass_scsipi_cb, xs);
347 return;
348 }
349
350 /* Return if command finishes early. */
351 done:
352 scsipi_done(xs);
353 return;
354 default:
355 /* Not supported, nothing to do. */
356 ;
357 }
358 }
359
360 Static void
361 umass_scsipi_minphys(struct buf *bp)
362 {
363 #ifdef DIAGNOSTIC
364 if (bp->b_bcount <= 0) {
365 printf("umass_scsipi_minphys count(%d) <= 0\n",
366 bp->b_bcount);
367 bp->b_bcount = UMASS_MAX_TRANSFER_SIZE;
368 }
369 #endif
370 if (bp->b_bcount > UMASS_MAX_TRANSFER_SIZE)
371 bp->b_bcount = UMASS_MAX_TRANSFER_SIZE;
372 minphys(bp);
373 }
374
375 int
376 umass_scsipi_ioctl(struct scsipi_channel *chan, u_long cmd,
377 void *arg, int flag, proc_t *p)
378 {
379 /*struct umass_softc *sc = link->adapter_softc;*/
380 /*struct umass_scsipi_softc *scbus = sc->bus;*/
381
382 switch (cmd) {
383 #if 0
384 case SCBUSIORESET:
385 ccb->ccb_h.status = CAM_REQ_INPROG;
386 umass_reset(sc, umass_cam_cb, (void *) ccb);
387 return 0;
388 #endif
389 default:
390 return ENOTTY;
391 }
392 }
393
394 Static int
395 umass_scsipi_getgeom(struct scsipi_periph *periph, struct disk_parms *dp,
396 u_long sectors)
397 {
398 struct umass_softc *sc =
399 device_private(periph->periph_channel->chan_adapter->adapt_dev);
400
401 /* If it's not a floppy, we don't know what to do. */
402 if (sc->sc_cmd != UMASS_CPROTO_UFI)
403 return 0;
404
405 switch (sectors) {
406 case 1440:
407 /* Most likely a single density 3.5" floppy. */
408 dp->heads = 2;
409 dp->sectors = 9;
410 dp->cyls = 80;
411 return 1;
412 case 2880:
413 /* Most likely a double density 3.5" floppy. */
414 dp->heads = 2;
415 dp->sectors = 18;
416 dp->cyls = 80;
417 return 1;
418 default:
419 return 0;
420 }
421 }
422
423 Static void
424 umass_scsipi_cb(struct umass_softc *sc, void *priv, int residue, int status)
425 {
426 UMASSHIST_FUNC(); UMASSHIST_CALLED();
427 struct umass_scsipi_softc *scbus = (struct umass_scsipi_softc *)sc->bus;
428 struct scsipi_xfer *xs = priv;
429 struct scsipi_periph *periph = xs->xs_periph;
430 int cmdlen, senselen;
431 #ifdef UMASS_DEBUG
432 struct timeval tv;
433 u_int delta;
434 microtime(&tv);
435 delta = (tv.tv_sec - sc->tv.tv_sec) * 1000000 + tv.tv_usec - sc->tv.tv_usec;
436 DPRINTFM(UDMASS_CMD, "delta=%ju: xs=%#jx residue=%jd status=%jd",
437 delta, (uintptr_t)xs, residue, status);
438 #endif
439
440
441 xs->resid = residue;
442
443 switch (status) {
444 case STATUS_CMD_OK:
445 xs->error = XS_NOERROR;
446 break;
447
448 case STATUS_CMD_UNKNOWN:
449 /* FALLTHROUGH */
450 case STATUS_CMD_FAILED:
451 /* fetch sense data */
452 sc->sc_sense = 1;
453 memset(&scbus->sc_sense_cmd, 0, sizeof(scbus->sc_sense_cmd));
454 scbus->sc_sense_cmd.opcode = SCSI_REQUEST_SENSE;
455 scbus->sc_sense_cmd.byte2 = periph->periph_lun <<
456 SCSI_CMD_LUN_SHIFT;
457
458 if (sc->sc_cmd == UMASS_CPROTO_UFI ||
459 sc->sc_cmd == UMASS_CPROTO_ATAPI)
460 cmdlen = UFI_COMMAND_LENGTH; /* XXX */
461 else
462 cmdlen = sizeof(scbus->sc_sense_cmd);
463 if (periph->periph_version < 0x04) /* SPC-2 */
464 senselen = 18;
465 else
466 senselen = sizeof(xs->sense);
467 scbus->sc_sense_cmd.length = senselen;
468 sc->sc_methods->wire_xfer(sc, periph->periph_lun,
469 &scbus->sc_sense_cmd, cmdlen,
470 &xs->sense, senselen,
471 DIR_IN, xs->timeout, 0,
472 umass_scsipi_sense_cb, xs);
473 return;
474
475 case STATUS_WIRE_FAILED:
476 xs->error = XS_RESET;
477 break;
478
479 case STATUS_TIMEOUT:
480 xs->error = XS_TIMEOUT;
481 break;
482
483 default:
484 panic("%s: Unknown status %d in umass_scsipi_cb",
485 device_xname(sc->sc_dev), status);
486 }
487
488 DPRINTFM(UDMASS_CMD, "return xs->error=%jd, xs->xs_status=%#jx"
489 " xs->resid=%jd", xs->error, xs->xs_status, xs->resid, 0);
490
491 scsipi_done(xs);
492 }
493
494 /*
495 * Finalise a completed autosense operation
496 */
497 Static void
498 umass_scsipi_sense_cb(struct umass_softc *sc, void *priv, int residue,
499 int status)
500 {
501 UMASSHIST_FUNC(); UMASSHIST_CALLED();
502 struct scsipi_xfer *xs = priv;
503 size_t extra;
504
505 DPRINTFM(UDMASS_CMD, "sc %#jx: xs=%#jx residue=%jd status=%jd",
506 (uintptr_t)sc, (uintptr_t)xs, residue, status);
507
508 sc->sc_sense = 0;
509 switch (status) {
510 case STATUS_CMD_OK:
511 case STATUS_CMD_UNKNOWN:
512 /* getting sense data succeeded */
513 extra = sizeof(xs->sense.scsi_sense)
514 - sizeof(xs->sense.scsi_sense.extra_bytes);
515 if (residue <= extra)
516 xs->error = XS_SENSE;
517 else
518 xs->error = XS_SHORTSENSE;
519 break;
520 default:
521 DPRINTFM(UDMASS_SCSI, "sc %#jx: Autosense failed, status %jd",
522 (uintptr_t)sc, status, 0, 0);
523 xs->error = XS_DRIVER_STUFFUP;
524 break;
525 }
526
527 DPRINTFM(UDMASS_CMD, "return xs->error=%jd, xs->xs_status=%#jx"
528 " xs->resid=%jd", xs->error, xs->xs_status, xs->resid, 0);
529
530 scsipi_done(xs);
531 }
532
533 #if NATAPIBUS > 0
534 Static void
535 umass_atapi_probe_device(struct atapibus_softc *atapi, int target)
536 {
537 UMASSHIST_FUNC(); UMASSHIST_CALLED();
538 struct scsipi_channel *chan = atapi->sc_channel;
539 struct scsipi_periph *periph;
540 struct scsipibus_attach_args sa;
541 char vendor[33], product[65], revision[17];
542 struct scsipi_inquiry_data inqbuf;
543
544 DPRINTFM(UDMASS_SCSI, "atapi=%#jx target=%jd", (uintptr_t)atapi,
545 target, 0, 0);
546
547 if (target != UMASS_ATAPI_DRIVE) /* only probe drive 0 */
548 return;
549
550 /* skip if already attached */
551 if (scsipi_lookup_periph(chan, target, 0) != NULL) {
552 return;
553 }
554
555 periph = scsipi_alloc_periph(M_WAITOK);
556 DIF(UDMASS_UPPER, periph->periph_dbflags |= 1); /* XXX 1 */
557 periph->periph_channel = chan;
558 periph->periph_switch = &atapi_probe_periphsw;
559 periph->periph_target = target;
560 periph->periph_quirks = chan->chan_defquirks;
561
562 DPRINTFM(UDMASS_SCSI, "doing inquiry", 0, 0, 0, 0);
563 /* Now go ask the device all about itself. */
564 memset(&inqbuf, 0, sizeof(inqbuf));
565 if (scsipi_inquire(periph, &inqbuf, XS_CTL_DISCOVERY) != 0) {
566 DPRINTFM(UDMASS_SCSI, "scsipi_inquire failed", 0, 0, 0, 0);
567 free(periph, M_DEVBUF);
568 return;
569 }
570
571 strnvisx(vendor, sizeof(vendor), inqbuf.vendor, 8,
572 VIS_TRIM|VIS_SAFE|VIS_OCTAL);
573 strnvisx(product, sizeof(product), inqbuf.product, 16,
574 VIS_TRIM|VIS_SAFE|VIS_OCTAL);
575 strnvisx(revision, sizeof(revision), inqbuf.revision, 4,
576 VIS_TRIM|VIS_SAFE|VIS_OCTAL);
577
578 sa.sa_periph = periph;
579 sa.sa_inqbuf.type = inqbuf.device;
580 sa.sa_inqbuf.removable = inqbuf.dev_qual2 & SID_REMOVABLE ?
581 T_REMOV : T_FIXED;
582 if (sa.sa_inqbuf.removable)
583 periph->periph_flags |= PERIPH_REMOVABLE;
584 sa.sa_inqbuf.vendor = vendor;
585 sa.sa_inqbuf.product = product;
586 sa.sa_inqbuf.revision = revision;
587 sa.sa_inqptr = NULL;
588
589 atapi_probe_device(atapi, target, periph, &sa);
590 /* atapi_probe_device() frees the periph when there is no device.*/
591 }
592 #endif
593